CP5670,
yeah, please try the mission with D1 3dfx.
D2X-XL does handle the special D1 trigger types, but this trigger has no attributes at all when viewing it with a level editor (I tried both DLE-XP and DMB2, in case I had messed up something in DLE-XP that had been working in DMB2). Though it is possible though, I can't quite believe that a trigger put right in front of a blue key access should do nothing.
Concerning your DBB registration: The DBB has changed servers a few times recently, which has caused login problems by users who didn't clear their cookies after such moves. You may want to clear all cookies and access it via
http://www.descentbb.net, maybe that helps. If not, I'll ask KoolBear about it (he runs the DBB). He will certainly be able to help you out.

The ship is not the Black Pyro, but a PyroGL model Eagle had built for Descent 4. It has about 1500 faces (polygons). Someone converted it to the Descent 3 model format (OOF - Outrage Object Format, also used in Descent:Freespace

) and put it in a Descent 3 hog file. I extracted it from there and built OOF handling capabilities into D2X-XL. Theoretically D2X-XL could now handle hires robots in OOF. I'd need to add spatial animation handling, but that shouldn't be too hard. All I need is a modeler.

Edit:
I have fixed the bug causing D1 custom mission briefings not to be played.